20012082105136 has 80 divisors (see below), whose sum is σ = 42404153246208. Its totient is φ = 9073643321600.

The previous prime is 20012082105031. The next prime is 20012082105139. The reversal of 20012082105136 is 63150128021002.

It is a junction number, because it is equal to n+sod(n) for n = 20012082105098 and 20012082105107.

It is not an unprimeable number, because it can be changed into a prime (20012082105139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235108761 + ... + 235193863.

Almost surely, 2^{20012082105136} is an apocalyptic number.

It is an amenable number.

20012082105136 is an abundant number, since it is smaller than the sum of its proper divisors (22392071141072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20012082105136 is a wasteful number, since it uses less digits than its factorization.

20012082105136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88450 (or 88444 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The spelling of 20012082105136 in words is "twenty trillion, twelve billion, eighty-two million, one hundred five thousand, one hundred thirty-six".